Hi, all, I diced a 4-in silicon wafer into 15mm*15mm pieces. I usually use cotton tips soaked with acetone to clean the small wafer pieces. However, it is very time consuming when I deal with a large amount of pieces. Also, I find the surface could not be cleaned thoroughly sometimes. There are still some residue and tiny particles staying on the surface. Do you have any suggestion on how I am supposed to improve the cleaned surface quality in an efficient way? Very appreciative! Li